Open-source alternatives to Gamma

Productivity & Notes · 3 free & open-source options

Looking to replace Gamma with something free and open-source? These 3 tools are the best open alternatives in 2026 — most are self-hostable, so you keep full control of your data and pay no subscription.

Slidev ›MIT
Presentation slides for developers, written in Markdown.
Full profile ›GitHub ↗
Marp ›MIT
Markdown presentation ecosystem with clean themes and export.
Full profile ›GitHub ↗
reveal.js ›MIT
The classic HTML presentation framework, endlessly customizable.
Full profile ›GitHub ↗

FAQ

What is the best open-source alternative to Gamma?

The top open-source alternative is Slidev — Presentation slides for developers, written in Markdown. The full ranked list is above.

Are these Gamma alternatives free?

Yes. Every tool listed is open-source and free to use; most can be self-hosted so you keep full control of your data.

Can I self-host an alternative to Gamma?

Most of these tools are designed to run on your own server or machine, giving you privacy and no subscription fees.

More open-source alternatives

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